Z-RIG: Building Instructions (Mechanical Advantage System for Pulling and Hauling) for Arborists!
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THIRD HAND with a Rescue/Figure 8 Descender Using a Friction Hitch/Prusik for Rappelling!
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Building a Z-Rig 3:1 Mechanical Advantage Hauling System
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ROPE WALKING: A Complete Tutorial & Demonstration for Tree Climbers & Arborists (SRS/SRT Technique)
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Building Mechanical Advantage (3:1 or 5:1)
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SFD Training Minute Traditional Z Rig
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Search and rescue new technique C pulley z pulley palonNIM Institute Mountaineering UK 2019.
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Haul System Climbing | 3 to 1 and 5 to 1 How To and Physics Behind it
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